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amazonAmazonALAS-2023-1776
HistoryJun 27, 2023 - 11:45 p.m.

Important: kernel

2023-06-2723:45:00
alas.aws.amazon.com
19
linux kernel
ipv6 tcp
connection tracking
cpu usage
cve-2023-1206
update
red hat
mitre
unix

5.7 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

0.0004 Low

EPSS

Percentile

5.1%

Issue Overview:

An issue was found in the Linux kernel’s IPv6 TCP connection tracking code, which could lead to high CPU usage with certain traffic patterns. (CVE-2023-1206)

Affected Packages:

kernel

Issue Correction:
Run yum update kernel to update your system.

New Packages:

i686:  
    kernel-debuginfo-common-i686-4.14.318-167.530.amzn1.i686  
    kernel-tools-debuginfo-4.14.318-167.530.amzn1.i686  
    kernel-4.14.318-167.530.amzn1.i686  
    perf-4.14.318-167.530.amzn1.i686  
    kernel-devel-4.14.318-167.530.amzn1.i686  
    kernel-tools-devel-4.14.318-167.530.amzn1.i686  
    kernel-tools-4.14.318-167.530.amzn1.i686  
    kernel-headers-4.14.318-167.530.amzn1.i686  
    kernel-debuginfo-4.14.318-167.530.amzn1.i686  
    perf-debuginfo-4.14.318-167.530.amzn1.i686  
  
src:  
    kernel-4.14.318-167.530.amzn1.src  
  
x86_64:  
    kernel-tools-debuginfo-4.14.318-167.530.amzn1.x86_64  
    kernel-tools-4.14.318-167.530.amzn1.x86_64  
    perf-4.14.318-167.530.amzn1.x86_64  
    kernel-4.14.318-167.530.amzn1.x86_64  
    kernel-debuginfo-4.14.318-167.530.amzn1.x86_64  
    kernel-debuginfo-common-x86_64-4.14.318-167.530.amzn1.x86_64  
    perf-debuginfo-4.14.318-167.530.amzn1.x86_64  
    kernel-headers-4.14.318-167.530.amzn1.x86_64  
    kernel-devel-4.14.318-167.530.amzn1.x86_64  
    kernel-tools-devel-4.14.318-167.530.amzn1.x86_64  

Additional References

Red Hat: CVE-2023-1206

Mitre: CVE-2023-1206

5.7 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

0.0004 Low

EPSS

Percentile

5.1%